Starter for internal-combustion engines.



x T. A. BOOB. STARTER FOR INTERNAL OOMBUS'I'ION ENGINES.

APPLICATION FILED 210v. a; 1912.

Patented July 14,1914

3 SHEETS-SHEBT 1.

WITNESSES T. A. BOOK;

STAB/PER FOR- IN'TEIRNAL GOP-JERUSTION ENGIHKiS,

July 14,1914

. 3 3HEETS-SHBBT 2.

T. AQBOOR.

STARTER FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED HOV. 8, 1912. 1,103,?36, .Patentad July 14, 1914. sSHEETS-SHEET 3.

. 25 I d an F no mm a a; 54 so 29 WWE' Z ZZ'L 4Z&a; a? y 55 36 hTHEODORE A. BOOB,

OF ASHVILLE, OHIO.

s'rsn'rnn non rnrnmmn-coivmos'rron rmorivns.

Specification of Letters Patent.

' Patented Julylel, 19 14.

Application filed November 8, 1912. Serial 110. 730,171.

1 To all/whom it may concern:

Be it known that I, Tlnnooonn A. Boon, a citizen of the United States,and a resident of Ashville, in the county of Pickaway and State of Ohio,have invented a new and Improved Starter for Internal-CombustionEngines, of which the following is a'full, clear, and exact description.

My invention relates to an improvement in starting devices for internalcombustion engines, and the object thereof is to provide a separatemotor which can be operated by means of a suitable motive agent, such ascompressed air, and which is geared to the starting shaft or the enginein such a way that it can turn the some to set the engine running, andthen be operated in its turn by the engine crank shaft as a. pump tostore up air in a storage tank connected thereto for further use.

Reference is to be had to the accompanying drawings forming a part ofthis s coification, in which the same characters 0 referenco indicatethe same parts in all the views.

Flgure 1 represents a side elevation of my invention; Fig. 2 is s.longitudinal sections! view of the air motor and transmission gear-Fig.- 3 is a sectional view on the line 3--3 of Fig. 2; Fig. 4% is onend view of the air, motor; Fig. 5'is a top ion. of the transmissiongearing, showing t e clutches comprised, in the-same in one position;and

Fig. 6 is a view otthe same parts, showing the clutch mechanism inanother position. My invention can be applied to any kind of internalcombustion engine 1 and the starting motor 2 is located preferablybeside the crank case of this engine and geared to the main shaft bymeans oi gearing indicated as a whole by the numeral 3;; This 'garincomprises a number or clutches so arrange that the motor can be mode todrive the engine at the start, and efter that the enginmdrives the motoras a ump, to store up the compressed air neede to operate the startingmotor, in a suitable tank or reservoir to which the starting motor isconnected. This tank or reservoir is not shown onthe drawings, but itisconnected to the motor 2 by means of a pipe 4-, in which is avalvecasing 5. This casing contains a valve that is controlled by d lever 6mountedin suitable osition, such as the dash of an automobi e, when thestarter is used on antomobiles; and the valve itself comprises a valvebody 7, held to'its seat by means of o. spr ng 8 and openedagainst theforce of the spring by a rod 9 operated by e bell-crank lever 10. Thisbell-crank lever is rigidly mounted upon a spindle 11, upon which thelever 6 is also secured. This levercarriespedals 12 and 13, and when theformer is depressed the valve is opened, and when the latter is deressed the SpringB'is-free' to close the va ve. The airmotor 2 comprisesany number of. cylinders and is provided. with a valve chest "14, fromwhich com-T: munication is bad to eaehof the"cyl indcrs--; by meansof-valves 15 held in closed pgsiti'on '70, by springs 16. andcontrolling inlet passages" 17. These valves are operated by rods 18 12( of the air motor and each cylinder of the onmotor is providedwith apiston 21cm rods 22. The air onto each' cylinder-in turn, as the valveclosin the passage 17 is". i opened, forcing the piston 2ltherilifoutsward to such an extent as. to' uncover the go exhaust passage 23 at theend of its stroke 4 and allow the air. toescape. The motion of the shaft20 of the hinmotor 2 is communis cated to the crank shaft ofthe-engineby suitable ear wheels andgclutches, as above stated. .his'transmission mechanism includes a pinion 24 on the outer end of theshaft 20, which drives a gear wheel 25'. mounted on a stud 26 projectingfrom the framework of the engine 1. Integral within this or wheel 25isfa. clutch membcr.27 whic engages-with aclutch member 28 car: ried byanother wheel 29 having fiangesBO. These wheels 25 and'29 turn loosely.on the spindle or stud 23. v 1 k Themain shaft ofthe engine receivesmo,- tion from the pinion 29,:by means gf a veer wheel 31 mountedon theengine can]: si 32, so as to be able to turn freelywith refii spect-tothis crank shaft. The engine crenk m, s aft is provided with a clutchmember 33 secured thereto, which meshes h with :a clutch member 34formin clutch 35, the intcrmcshmg teeth" on the and engaged by cams 19on themain shaft I 1t nected to the crank is aft 20 by ea 5 the hub ofthe] ear wheel 31, andthis c utch member34 clutch34 and clutch willenable the crank shaft 32 to turn the gear 31, being designed to givethis'mode of operation. The shaft 20 on the motor 2 also carries a gearwheel 36 with which the gear 31 comes into mesh when the clutches 34 and35 are interlocked. The sliding movement necessary to operate the clutch34 in both directions is efiected by means of a fork 37 carried on theend of a rod 38. This rod ismounted in bearings on theframework of themotor or engine andisj connected by means of a-link 39 to a pin or; boltat the lower end of the bell-crank, lever 10. I

In operation, when itis desired to start:

the engine, thepedal 12 is depressed, open- 5' ing the valve 7- andallowing air to flow into} the c'ylindersof the air motor. The'samejmovement of the lever 6 -withdrawsthe rod? 38, moving the gear 31 andwith it the pinion 29, because of the disks or flanges 30, in, suchadirection as to cause the clutches 33} and 34 and 27 and '28 tov comeinto-engaged;- relation. The pinion 24 now tur'ns the gear; 25, andthrough the clutches 27 and 28 the pinion 29. This pinion 29 turns thegear 31, which transmits motion through the? clutches 33 and 34 to'thecrankshaft of the? engine. After the enginel is running, the,

operator depresses the pedal I3, a1lowing; the spring 8 to close'thevalve 7 and move;

, the rod 38 in the opposite direction. Thegearwheels 29 and 31 now moveto theleft, referring to Fig. 2, bringing the gear 31 into a mesh'withthe gear 36, and the clutch 34;;

into mesh with the clutch 3,5. The engine;

shaft 32 now transmits motion to the motorf shaft 20, and the motor 2operates as-a;

, ti'on, and'that I do not care to be limited to of the passage of airto the reservoir.

. and spirit of my invention.

.- pump, storing up air in the reservoir connccted to the pipei, andthus replenishing the supply of compressed air, so that the enj ginscan'bc again started after stopping. During thislatter operation valve 7opens; under a pressure from the pump to permit I wishto have itunderstood that the.

above description is illustrative only anddiscloses but one embodimentof my inventhe exact details shown and described, but

Having thus described my invention, I claimas new and desire to secureby Letters Patent: I

1. :In a .starterfor. internal combustion engines, an intermcdiatelypiyoted foot treadle, a spindle on which the foot treadle is secured, abell-cranlc secured=\upon said spindle, a valve operated by one arm ofsaid bell-crankto supply motive fluid to a motor,

carried thereby, a gear operated by said pinion, a clutch member carriedby said gear, a pinion having ,a clutch member adapted tomesh withthefirst named clutch memberya gear meshing with said second namedpinion, an enginedriven power shaft, a "clutch for connecting the lastnamed;- gear to the said power shaft, and

means'f'or moving said second named pinion and gear tothrow said clutchand clutch members into and out of operation.

3. A starter for internal combustion engines, comprising a motor, apinion and a gear mounted upon the shaft thereof, a gear meshing withthe pinion and having a clutch member, a second pinion having a clutchmember to engage the first clutch member, an engine-driven power shaft,a pair of clutch members carried by'the said power shaft, a gear mountedon the ower.

shaft between said clutch members an having clutch members toengage eachof the members on the power shaft, said last named gear meshing with thesecond named.

pinion, and means for moving said'second named inion and the engineshaft gear to enable t e motor to drive the engine to start the same,and the engine to drive the motor as a'compressor after starting.

4. A starter for internal combustion engines, comprising'a motor, apinion mounted on the shaft thereof, an'intermediate gear and pinion,the former of which meshes with the shaftpinion, a, clutch'ada'pted toconnect said intermediate gear and pin on,

. an engine-driven power shaft, a gear mounted on the said power shaftand in engagement and movable with the intermediate pinion, ageaumounted on the motor shaft and with which the-engine "shaft gear isadapted to mesh when the intermediate gearand pinion are disengaged, andelutchesfor connecting the engine shaft gear with the I engine shaft inrelatively opposite direc ti'ons, all for the purpose described. v Intestimony whereof I have signed-my name to this specification in thepresence of two subscribing witnesses.

THEODORE A. BOOR.

Witnesses: WILLS E. Hoovnn, I

Winlmm M. MILLER.

